# Relationship history for MSHA mine 1514167

Current hierarchy: **Elmer  Jent → Jent & Franks Coal Company Inc → No 4 Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Angela-Ann Coal Company Inc → No 4 Mine; 1983-08-01 to 1984-06-17; source msha-controller-operator-history
- **controller_controls_mine:** Kennie Ray  Childers → No 4 Mine; 1983-08-01 to 1988-03-06; source msha-controller-operator-history
- **controller_controls_operator:** Kennie Ray  Childers → Angela-Ann Coal Company Inc; 1983-08-01 to 1984-06-17; source msha-controller-operator-history
- **controller_controls_mine:** Adams Luther → No 4 Mine; 1983-11-02 to 1985-06-23; source msha-controller-operator-history
- **operator_operates_mine:** Scott Keith Energy Company → No 4 Mine; 1984-06-18 to 1985-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Adams Luther → Scott Keith Energy Company; 1984-06-18 to 1985-06-23; source msha-controller-operator-history
- **controller_controls_mine:** Elmer  Jent → No 4 Mine; 1984-06-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Center Coal Company → No 4 Mine; 1985-06-24 to 1986-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Breeden Elden H → No 4 Mine; 1985-06-24 to 1986-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Breeden Elden H → Center Coal Company; 1985-06-24 to 1986-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Jent & Franks Coal Company Inc → No 4 Mine; 1986-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elmer  Jent → Jent & Franks Coal Company Inc; 1986-04-07 to current/open; source msha-controller-operator-history